
/*
 * Janino - An embedded Java[TM] compiler
 *
 * Copyright (c) 2001-2010, Arno Unkrig
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
 *       following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 *       following disclaimer in the documentation and/or other materials provided with the distribution.
 *    3. The name of the author may not be used to endorse or promote products derived from this software without
 *       specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

import java.io.File;
import java.util.Collection;

import org.codehaus.commons.compiler.AbstractJavaSourceClassLoader;
import org.codehaus.commons.compiler.ICompilerFactory;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import util.TestUtil;

// CHECKSTYLE JavadocMethod:OFF

/** Tests for the {@link IJavaSourceClassLoader}. */
@RunWith(Parameterized.class) public
class JavaSourceClassLoaderTests {

    private static final File[] SOURCE_PATH = new File[] {
        new File("../janino/src"),
        new File("../commons-compiler/src"),
    };

    private final ICompilerFactory compilerFactory;

    @Parameters(name = "CompilerFactory={0}") public static Collection<Object[]>
    compilerFactories() throws Exception {
        return TestUtil.getCompilerFactoriesForParameters();
    }

    public
    JavaSourceClassLoaderTests(ICompilerFactory compilerFactory) {
        this.compilerFactory = compilerFactory;
    }

    @Test public void
    testJavaSourceClassLoader() throws Exception {
        ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader();
        systemClassLoader.loadClass(this.getClass().getName());

        ClassLoader extensionsClassLoader = systemClassLoader.getParent();
        try {
            extensionsClassLoader.loadClass(this.getClass().getName());
            Assert.fail("extensionsClassLoader should be separate from the current classloader");
        } catch (ClassNotFoundException cnfe) {
            // as we had intended
        }
        extensionsClassLoader.loadClass("java.lang.String");
        AbstractJavaSourceClassLoader jscl = this.compilerFactory.newJavaSourceClassLoader(extensionsClassLoader);
        jscl.setSourcePath(JavaSourceClassLoaderTests.SOURCE_PATH);
        jscl.loadClass("org.codehaus.janino.Compiler");
    }

    @Test public void
    testCircularSingleTypeImports() throws Exception {
        AbstractJavaSourceClassLoader jscl = this.compilerFactory.newJavaSourceClassLoader(
            ClassLoader.getSystemClassLoader().getParent()
        );
        jscl.setSourcePath(new File[] { new File("aux-files/testCircularSingleTypeImports/") });
        jscl.loadClass("test.Func1");
    }

    @Test public void
    testCircularStaticImports() throws Exception {
        AbstractJavaSourceClassLoader jscl = this.compilerFactory.newJavaSourceClassLoader(
            ClassLoader.getSystemClassLoader().getParent()
        );
        jscl.setSourcePath(new File[] { new File("aux-files/testCircularStaticImports/") });
        jscl.loadClass("test.Func1");
    }
}
